Update ChangeLog to reflect changes since 1.1.0.

ChangeLog

@@ -1,21 +1,32 @@
 post v1.1.0
 ------------------------
-
+    - New "ofproto" abstraction layer to ease porting to hardware
+      switching ASICs.
+    - Packaging for Red Hat Enterprise Linux 5.6 and 6.0.
+    - Datapath support for Linux kernels up to 3.0.
+    - OpenFlow:
+      - New "bundle" and "bundle_load" action extensions.
+    - Database:
+      - Implement table unique constraints.
+      - Support cooperative locking between callers.
+    - ovs-dpctl:
+      - New "-s" option for "show" command prints packet and byte
+        counters for each port.
+    - ovs-ofctl:
+      - New "--readd" option for "replace-flows".
+    - ovs-vsctl:
+      - New "show" command to print an overview of configuration.
+      - New "comment" command to add remark that explains intentions.
+    - ovs-brcompatd has been rewritten to fix long-standing bugs.
+    - ovs-openflowd has been renamed test-openflowd and moved into the
+      tests directory.  Its presence confused too many users.  Please
+      use ovs-vswitchd instead.
+    - New ovs-benchmark utility to test flow setup performance.
     - A new log level "off" has been added.  Configuring a log facility
       "off" prevents any messages from being logged to it.  Previously,
       "emer" was effectively "off" because no messages were ever logged at
       level "emer".  Now, errors that cause a process to exit are logged
       at "emer" level.
-    - The new "-s" option for "ovs-dpctl show" prints packet and byte
-      counters for each port.
-    - ovs-ofctl:
-      - New "--readd" option for "replace-flows".
-    - ovs-vsctl:
-      - New "show" command to print an overview of configuration.
-    - ovs-brcompatd has been rewritten to fix long-standing bugs.
-    - ovs-openflowd has been renamed test-openflowd and moved into the
-      tests directory.  Its presence confused too many users.  Please
-      use ovs-vswitchd instead.
     - "configure" option --with-l26 has been renamed --with-linux, and
       --with-l26-source has been renamed --with-linux-source.  The old
       names will be removed after the next release, so please update
@@ -24,9 +35,11 @@ post v1.1.0
       datapath/linux-2.6/compat-2.6 directories.
     - Feature removals:
       - Dropped support for "tun_id_from_cookie" OpenFlow extension.
-	(Use the extensible match extensions instead.)
+	    Please use the extensible match extensions instead.
       - Removed the Maintenance_Point and Monitor tables in an effort
         to simplify 802.1ag configuration.
+    - Performance and scalability improvements
+    - Bug fixes
 
 v1.1.0 - 05 Apr 2011
 ------------------------